Why are you crying? She stated her opinion. You responded by preaching at her (poorly) and implying she was a brainwashed moron.

Being polyamorous is not anything like being GLBTQ. It hardly makes you special. If I had one partner for the rest of eternity, I'd be fine. If I had none, I'd be fine. You can't compare it to being forced to live a heteronormative lifestyle that feels wrong - You don't need to be with several people.

If your big source of pain in your life is not telling the world you're polyamorous, you're lucky. Tone down the drama, and apologize for your preaching and implications. You're the one who messed up here, based on the transcripts.